CLEADERM Dr. Lacto Barrier Serum is a highly effective serum designed to enhance the skin's moisture barrier and soothe sensitive skin, thanks to its key ingredient, Lacto-7 Barrier™, a probiotic ferment developed with the technological expertise of Jongkundang Health. Its formula, tested and awarded the highest grade of EXCELLENT in German derma tests, ensures gentle care for the skin while boosting hydration and improving skin texture without causing irritation.